Operating instructions

63
Calling up diagnosis
Service menu:
1. Press OK + å simultaneously for
approx. 4 s.
2. "Diagnosis"
3. Select required area, e.g. "Heat
pump"
Scanning operating data
Operating data can be scanned in the following areas:
"System overview" For further information, see page 63
"System" For further details, see menu structure
"Heating circuit 1" For further details, see menu structure
"Heating circuit 2" If a heating circuit with mixer M2 is installed, see the
menu structure for further details
"Cooling circuit SKK" If a separate cooling circuit is installed, see the menu
structure for further details
"DHW" For further details, see menu structure
"Solar" If a solar thermal system is installed, see the menu
structure for further details
"Heat pump" For further information, see page 66
"Temperature sensors" For further details, see menu structure
"Signal inputs" For further details, see menu structure
"Brief scan" For further information, see page 66
Note
Only connected temperature sensors
are displayed. In case of faults, the dis-
play shows "- - -".
System overview
Service menu:
1. Press OK + å simultaneously for
approx. 4 s.
2. "Diagnosis"
3. "System overview"
Note
The display depends on the system ver-
sion (e.g. column
H
: Display only if
heating circuit M2 is installed).
With some components the symbols
move when they are operational (e.g.
pumps).
The values shown are examples.
Troubleshooting
Diagnosis (service scans)
5441 603 GB
Service